=====================================================
BUG: KMSAN: uninit-value in exit_to_user_mode_loop+0x3a3/0x3d0 kernel/entry/common.c:152
 exit_to_user_mode_loop+0x3a3/0x3d0 kernel/entry/common.c:152
 exit_to_user_mode_prepare kernel/entry/common.c:201 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x7e/0xc0 kernel/entry/common.c:294
 do_syscall_64+0x5d/0xa0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Local variable regs created at:
 __bpf_prog_run32+0x84/0x180 kernel/bpf/core.c:2073
 bpf_dispatcher_nop_func include/linux/bpf.h:804 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2022 [inline]
 bpf_trace_run2+0x129/0x380 kernel/trace/bpf_trace.c:2059

CPU: 1 PID: 3878 Comm: udevd Not tainted 5.18.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
=====================================================
Kernel panic - not syncing: kmsan.panic set ...
CPU: 1 PID: 3878 Comm: udevd Tainted: G    B             5.18.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1ff/0x28e lib/dump_stack.c:106
 dump_stack+0x25/0x28 lib/dump_stack.c:113
 panic+0x4fe/0xc73 kernel/panic.c:250
 kmsan_report+0x2e6/0x2f0 mm/kmsan/report.c:208
 __msan_warning+0x94/0x110 mm/kmsan/instrumentation.c:252
 exit_to_user_mode_loop+0x3a3/0x3d0 kernel/entry/common.c:152
 exit_to_user_mode_prepare kernel/entry/common.c:201 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x7e/0xc0 kernel/entry/common.c:294
 do_syscall_64+0x5d/0xa0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f0d0d32a467
Code: 44 00 00 48 8b 15 11 aa 0c 00 f7 d8 64 89 02 b8 ff ff ff ff eb bc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 e1 a9 0c 00 f7 d8 64 89 02 b8
RSP: 002b:00007ffcd63413c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 000055b8d45533a0 RCX: 00007f0d0d32a467
RDX: 00007f0d0d3f1780 RSI: 000055b8d45f4ce0 RDI: 0000000000000008
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000001000 R11: 0000000000000202 R12: 00007f0d0d3f2380
R13: 0000000000000004 R14: 00007ffcd634145c R15: 000055b8d452c910
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..